Very user friendly for searching, and they have a ton of things like: Google Checkout, Blogger and Google base, but having virtually no customer service area and makes things a little difficult if you have questions about something.
One of the best and most well written sites on the internet. Anyone can add an article, or change an existing one. Amazingly, virtually all articles are very well written and informative. Very useful for general knowledge about almost anything you can think of.